must writhe
Verbo regular: writhe - writhed- writhed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must writhe
you must writhe
he must writhe
we must writhe
you must writhe
they must writhe 	I must be writhing
you must be writhing
he must be writhing
we must be writhing
you must be writhing
they must be writhing	I must have writhed
you must have writhed
he must have writhed
we must have writhed
you must have writhed
they must have writhed	I must have been writhing
you must have been writhing
he must have been writhing
we must have been writhing
you must have been writhing
they must have been writhing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not writhe
you must not writhe
he must not writhe
we must not writhe
you must not writhe
they must not writhe 	I must not be writhing
you must not be writhing
he must not be writhing
we must not be writhing
you must not be writhing
they must not be writhing	I must not have writhed
you must not have writhed
he must not have writhed
we must not have writhed
you must not have writhed
they must not have writhed	I must not have been writhing
you must not have been writhing
he must not have been writhing
we must not have been writhing
you must not have been writhing
they must not have been writhing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I writhe?
must you writhe?
must he writhe?
must we writhe?
must you writhe?
must they writhe? 	must I be writhing?
must you be writhing?
must he be writhing?
must we be writhing?
must you be writhing?
must they be writhing? 	must I have writhed?
must you have writhed?
must he have writhed?
must we have writhed?
must you have writhed?
must they have writhed? 	must I have been writhing?
must you have been writhing?
must he have been writhing?
must we have been writhing?
must you have been writhing?
must they have been writhing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not writhe?
must you not writhe?
must he not writhe?
must we not writhe?
must you not writhe?
must they not writhe? 	must I not be writhing?
must you not be writhing?
must he not be writhing?
must we not be writhing?
must you not be writhing?
must they not be writhing? 	must I not have writhed?
must you not have writhed?
must he not have writhed?
must we not have writhed?
must you not have writhed?
must they not have writhed? 	must I not have been writhing?
must you not have been writhing?
must he not have been writhing?
must we not have been writhing?
must you not have been writhing?
must they not have been writhing?